Research On Economic Linkage Of Beijing-Tianjin-Hebei Urban Agglomeration Based On Social Network Analysis

The coordinated development of Beijing-Tianj in-Hebei is an important strategy for the coordinated development of China's region and an important part of Xi Jinping's socialism with Chinese characteristics in the new era.Promoting the coordinated development of Beijing-Tianj in·Hebei and building a world-class urban agglomeration with the capital as the core is an important practice for China to solve regional imbalances and uncoordinated problems in the new era.It is of great strategic significance for realizing the "two hundred years" struggle goal and the Chinese dream of the great rejuvenation of the Chinese nation.To achieve regional economic integration and increase economic linkages within the region is the only way to provide theoretical support for relevant academic research.At present,there is not much research on the economic linkages between Beijing-Tianj in-Hebei urban agglomerations,and there is still much room for research.The improved gravity model is obtained by correcting the city quality,economic distance,gravitational coefficient,etc.,and the relevant indicators are brought into the gravity model to construct the economic linkage matrix between 11 prefecture-level cities in Beijing,Tianjin and Hebei Province,and use The social network analysis method selects appropriate indicators to conduct in-depth research on the economic linkages of the Beijing-Tianjin-Hebei urban agglomeration.The research shows that the economic ties between the Beijing-Tianjin-Hebei urban agglomerations are gradually deepening and the economic ties are becoming more and more close;the structure of the Beijing-Tianjin-Hebei urban agglomeration has changed,and the Beijing-Tianjin-Dual-Core structure has developed from a single city in Beijing.The two municipalities directly assist the city to promote the economic development of the Beijing-Tianjin-Hebei urban agglomeration and promote economic exchanges within the region;several major cities in Hebei Province are gradually emerging,and Shijiazhuang is playing a role in resolving the city in the Beijing-Tianjin-Hebei region due to its dominant position in the provincial capital.The role of Langfang,due to its geographical proximity to Beijing and Tianjin,has gradually expanded into an important part of the economic linkage network of the Beijing-Tianjin-Hebei urban agglomeration due to the dual-nuclear radiation and the function of its own transportation hub;The economic linkage direction is affected by the city's comprehensive economic strength and geographical factors.The cities with greater mutual influence are usually adjacent and have a certain proximity orientation.Under the radiation of several major cities,the economy between other cities in Hebei Province Communication is also closer and more frequent.